Low-Frequency Variations, Chandler and Annual Wobbles of Polar Motion as Observed Over One Century Joachim Höpfner OriginalPaper Pages: 1 - 54
The Use of Waste Materials in the Passive Remediation of Mine Water Polution Lesley C. BattyPaul L. Younger OriginalPaper Pages: 55 - 67
An Overview of Long-Term Trends in the Lower Ionosphere Below 120 km Jan LaštovičkaJürgen Bremer OriginalPaper Pages: 69 - 99